JPS6131452Y2 - - Google Patents
Info
- Publication number
- JPS6131452Y2 JPS6131452Y2 JP12373880U JP12373880U JPS6131452Y2 JP S6131452 Y2 JPS6131452 Y2 JP S6131452Y2 JP 12373880 U JP12373880 U JP 12373880U JP 12373880 U JP12373880 U JP 12373880U JP S6131452 Y2 JPS6131452 Y2 JP S6131452Y2
- Authority
- JP
- Japan
- Prior art keywords
- case
- rod
- shaped conductor
- bushing
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000004020 conductor Substances 0.000 claims description 26
- 239000012212 insulator Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Gas-Insulated Switchgears (AREA)
- Insulators (AREA)
Description
【考案の詳細な説明】
この考案はガス入り開閉器に関するものであ
る。ガス入り開閉器のケース内において閃絡や短
絡事故が発生した場合、従来のようにブツシング
の基端開口部とケース内とが直接連通されている
と、ケース内で発生した熱や高圧になつたガスは
ブツシングに対して直接に影響を及ぼして、ブツ
シングを破壊したり、極端なときにはブツシング
を爆発させることもあり、それらの破片が他の機
器や人蓄に被害を与える危険があり、公衆災害防
止の点から見ても好ましくなかつた。[Detailed description of the invention] This invention relates to a gas-filled switch. If a flash or short circuit accident occurs inside the case of a gas-filled switch, if the proximal opening of the bushing and the inside of the case are in direct communication as in the past, heat and high pressure will be generated inside the case. The gas directly affects the bushing and can destroy it, or in extreme cases cause it to explode, and there is a risk that the fragments may damage other equipment or personal storage, and the public This was not desirable from the standpoint of disaster prevention.
この考案は上記従来技術に存する問題点に着目
して成されたものであつて、ケースに対して基端
部が支持固定されるとともに電極等を固定支持す
るための棒状導体によりその導体と前記ケースに
対して気密状に締付け固定されるセンタークラン
プ方式のガスブツシングを備えたガス入り開閉器
において、前記棒状導体の基端部周側にはブツシ
ングの内部とケースの内部との連通部分を閉塞
し、前記棒状導体を支持する絶縁部材を密着固定
するとともに、その棒状導体にはブツシングの内
部とケースの内部とを連通するために小径の連通
孔を透設することにより、ケース内で発生した熱
や高圧になつたガスを急激にブツシング内に入れ
ることなく徐々に影響を与えるようにして、ブツ
シングの破損を防止できるようにし、公衆災害の
発生を防止するようにしたガス入り開閉器を提供
することを目的とする。 This invention was made by paying attention to the problems existing in the above-mentioned prior art, and the proximal end is supported and fixed to the case, and a rod-shaped conductor for fixedly supporting the electrode etc. is used to connect the conductor and the above. In a gas-filled switch equipped with a center-clamp type gas bushing that is airtightly tightened and fixed to the case, a communication portion between the inside of the bushing and the inside of the case is closed on the circumferential side of the base end of the rod-shaped conductor. In addition to closely fixing the insulating member that supports the rod-shaped conductor, a small diameter communication hole is provided in the rod-shaped conductor to communicate between the inside of the bushing and the inside of the case, so that the heat generated inside the case can be removed. To provide a gas-filled switch which prevents damage to bushings by gradually affecting high-pressure gas without suddenly introducing it into bushings, thereby preventing the occurrence of public disasters. The purpose is to
以下、この考案を具体化した一実施例を第１図
に従つて説明すると、ガス入り開閉器等のガス入
り機器のケース１内にはSF6等のガス絶縁物が充
填され、その開口端には環状の固定金具２が気密
状に溶接され、その固定金具２の内面には中央に
取付孔３ａが透設されるとともに、取付孔３ａ付
近の中央部が外方へ円錐状に突設された円板状の
絶縁部材３がボルト４にて締付固定されている。
その絶縁部材３の取付孔３ａには先端に雄ネジ部
５ａが形成された棒状導体５が基端部周側におい
て接着固定され、その棒状導体５の基端面には電
極やリード線を接続固定するための雌ネジ孔５ｂ
が凹設されるとともに、その雌ネジ孔５ｂの内底
面には小径孔６が棒状導体の軸心方向に穿設さ
れ、又その小径孔６の両端部には棒状導体５の周
側において前記絶縁部材３の内外各位置にそれぞ
れ開口する小径の内側連通孔７及び外側連通孔８
がそれぞれ透設されている。 An embodiment embodying this invention will be described below with reference to FIG. 1. A case 1 of a gas-filled device such as a gas-filled switch is filled with a gas insulator such as SF 6, and the open end of the case 1 is filled with a gas insulator such as SF 6 . An annular fixing fitting 2 is welded to the fixing fitting 2 in an airtight manner, and a mounting hole 3a is transparently formed in the center of the inner surface of the fixing fitting 2, and a central part near the mounting hole 3a is conically protruded outward. A disc-shaped insulating member 3 is tightened and fixed with bolts 4.
A rod-shaped conductor 5 with a male threaded portion 5a formed at the tip is adhesively fixed to the mounting hole 3a of the insulating member 3 on the circumferential side of the base end, and electrodes and lead wires are connected and fixed to the base end surface of the rod-shaped conductor 5. Female screw hole 5b for
is recessed therein, and a small diameter hole 6 is bored in the inner bottom surface of the female threaded hole 5b in the axial direction of the rod-shaped conductor, and at both ends of the small diameter hole 6, on the circumferential side of the rod-shaped conductor 5, A small-diameter inner communication hole 7 and an outer communication hole 8 that open at each position inside and outside the insulating member 3, respectively.
are each transparent.
前記棒状導体５の先端部には外端周側に嵌合溝
９ａが凹設された頭部金具９が２個のＯリング１
０を介して気密状に嵌合され、その頭部金具９と
前記固定金具２との間には内部に前記ガス絶縁物
が充填される筒状のブツシング１１がＯリング１
２を介して気密状に挾持されている。前記棒状導
体５の先端部の雄ネジ部５ａにはスプリングワツ
シヤ１３を介してナツト１４が螺合締結されると
ともに、その雄ネジ部５ａには外部電線接続端子
１５が螺合されている。そして、その外部電線接
続端子１５及び頭部金具９の外方には両者を包囲
するように基端内周に突設された嵌合突条１６ａ
において前記頭部金具９の嵌合溝９ａに嵌合固定
されるゴム等にて形成された絶縁筒１６が設けら
れている。 At the tip of the rod-shaped conductor 5, a head fitting 9 with a fitting groove 9a recessed on the outer circumferential side is attached to two O-rings 1.
Between the head fitting 9 and the fixing fitting 2, a cylindrical bushing 11 whose inside is filled with the gas insulator is connected to the O-ring 1.
2 in an airtight manner. A nut 14 is screwed into the male screw portion 5a at the tip of the rod-shaped conductor 5 via a spring washer 13, and an external wire connection terminal 15 is screwed into the male screw portion 5a. On the outside of the external wire connection terminal 15 and the head metal fitting 9, a fitting protrusion 16a is provided on the inner periphery of the base end so as to surround both.
An insulating cylinder 16 made of rubber or the like is provided which is fitted and fixed in the fitting groove 9a of the head fitting 9.
さて、上記のように構成されたガスブツシング
の構造では前記ケース１内において閃絡や短絡事
故が発生して熱や高圧になつたガスが生じてもそ
れらは第１図に実線の矢印で示すように棒状導体
５の内側連通孔７から小径孔６及び外側連通孔８
を通りブツシング１１内に導びかれるようになつ
ているので、ブツシング１１内における温度や圧
力は緩やかに上昇することになる。そのため、ブ
ツシング１１が前記の熱や高圧になつたガスのシ
ヨツクにより破損することは防止される。 Now, with the structure of the gas bushing configured as described above, even if a flash or short circuit accident occurs in the case 1 and heat and high pressure gas are generated, they will be dissipated as shown by the solid line arrow in Figure 1. from the inner communication hole 7 to the small diameter hole 6 and the outer communication hole 8 of the rod-shaped conductor 5.
Since the air is guided into the bushing 11 through the bushing 11, the temperature and pressure inside the bushing 11 will rise gradually. Therefore, the bushing 11 is prevented from being damaged by the heat or the shock of the high-pressure gas.
なお、第１図に鎖線で示すように、棒状導体５
の雌ネジ孔５ｂに対して小径の透孔１７ａが透設
されている電極１７を螺合した場合には前記雄ネ
ジ部５ａを前記内側連通孔７の代わりに使用する
ことができる。 In addition, as shown by the chain line in FIG. 1, the rod-shaped conductor 5
When an electrode 17 having a small-diameter through hole 17a is screwed into the female threaded hole 5b, the male threaded portion 5a can be used in place of the inner communicating hole 7.
又、小径孔６及び両連通孔７，８より成る連通
孔を棒状導体５に設けたことにより、前記絶縁部
材３に連通孔を設けた場合と異なり、誘電率の差
により小径の連通孔に電位が集中しコロナを発生
させるといつた問題は防止される。 Also, by providing a communication hole consisting of the small diameter hole 6 and both communication holes 7 and 8 in the rod-shaped conductor 5, unlike the case where the communication hole is provided in the insulating member 3, the difference in dielectric constant makes it possible to connect the small diameter communication hole. Problems such as potential concentration and corona generation are prevented.
次に、前記実施例を柱上用ガス入り開閉器に具
体化した一例を第２図及び第３図に従い、前記実
施例と同様又は近似する部分には同符号を付して
その説明を省略して説明すると、この開閉器はバ
ツフア式の開閉器であつて、SF6等のガス絶縁物
が充填されたケース２１の両側にはそれぞれ各相
別に電源側及び負荷側のブツシング２２，２３が
センタークランプ方式でもつて気密状に固着さ
れ、そのケース２１の上面には電柱の腕金２４に
吊下固定するための取付金具２５が固着されると
ともに、その下面にはケース２１外へ導出された
操作ハンドル２６の回動操作により開閉操作され
る操作機構を収容した機構ケース２７が固着さ
れ、又そのケース１内中央において前記各相のブ
ツシング２２と対応する位置には電源側ブツシン
グ２２に対して開口するシリンダ２８が支持碍子
２８ａにより絶縁支持されている。 Next, an example in which the above-mentioned embodiment is embodied in a pole-mounted gas-filled switch is shown in Figs. 2 and 3, and parts similar to or similar to those in the above-mentioned embodiment are given the same reference numerals, and their explanations are omitted. To explain this, this switch is a buffer type switch, and there are bushings 22 and 23 on the power supply side and the load side for each phase on both sides of a case 21 filled with a gas insulator such as SF 6 . The case 21 is fixed in an airtight manner using a center clamp method, and a mounting bracket 25 is fixed to the upper surface of the case 21 for suspending and fixing it to the armrest 24 of a telephone pole, and a mounting bracket 25 is fixed to the lower surface of the case 21 to lead out of the case 21. A mechanism case 27 housing an operating mechanism that is opened and closed by rotating the operating handle 26 is fixed therein, and in the center of the case 1, there is a mechanism case 27 at a position corresponding to the bushings 22 of each phase with respect to the power supply side bushings 22. The open cylinder 28 is insulated and supported by a support insulator 28a.
前記電源側及び負荷側のブツシング２２，２３
内の外部電線接続端子（図示せず）にはそれぞれ
電源側及び負荷側の外部電線２９，３０が接続さ
れている。その電源側の外部電線２９に対して電
気的に接続された棒状導体５の基端には固定電極
３１が螺着され、前記シリンダ２８の開口側に対
向している。前記負荷側の外部電線３０には前記
固定電極３１に対して接離可能に対応する可動電
極３２が直線的な移動が可能となるように電気的
に接続され、その先端には前記シリンダ２８の内
周に対して摺接可能なピストンリング３３が周側
に嵌合されたピストンとしてのオリフイスコーン
３４が装着されるとともに、その一部にはピン３
５が回動可能に挿通されている。そして、そのピ
ン３５の両端には前記操作機構により回動操作さ
れる回動軸３６に基端が固着された操作アーム３
７の先端部が軸着されている。 Bushings 22 and 23 on the power supply side and load side
External electric wires 29 and 30 on the power supply side and the load side are connected to external electric wire connection terminals (not shown) inside, respectively. A fixed electrode 31 is screwed onto the base end of the rod-shaped conductor 5 that is electrically connected to the external electric wire 29 on the power source side, and faces the opening side of the cylinder 28 . A movable electrode 32 corresponding to the fixed electrode 31 is electrically connected to the external electric wire 30 on the load side so as to be movable in a straight line. An orifice cone 34 as a piston is fitted on the circumferential side with a piston ring 33 that can be slid into contact with the inner circumference, and a part of the orifice cone 34 is fitted with a piston ring 33 that can slide into contact with the inner circumference.
5 is rotatably inserted. At both ends of the pin 35, there is an operation arm 3 whose base end is fixed to a rotation shaft 36 which is rotated by the operation mechanism.
The tip of 7 is pivoted.
そして、この開閉器において操作ハンドル２６
を回動操作すると、操作機構を介して回動軸３６
が回動され、その回動に伴つて操作アーム３７が
ピン３５を介して前記可動電極３２を進退させ、
固定電極３１に対して可動電極３２を接離させる
ようになつている。そして、その開極時にはオリ
フイスコーンの作用によりアークに対してガス絶
縁物が吹き付けられ消弧するようになつている。
又、棒状導体５は前記実施例と同様にブツシング
２２，２３に対して防爆作用をする。 In this switch, the operating handle 26
When rotated, the rotation shaft 36 is rotated through the operation mechanism.
is rotated, and along with the rotation, the operating arm 37 moves the movable electrode 32 forward and backward via the pin 35,
The movable electrode 32 is moved toward and away from the fixed electrode 31. When the arc is opened, a gas insulator is sprayed onto the arc by the action of the orifice cone to extinguish the arc.
Further, the rod-shaped conductor 5 acts as explosion proof for the bushings 22 and 23 as in the previous embodiment.
なお、この具体例における負荷側ブツシング２
３内の棒状導体５（図示せず）の基端部に複数の
スリツトを有するチユーリツプ状の接触子が形成
され、その接触子部分において可動電極との通電
を確保するようになつている場合には、前記実施
例における小径孔６を前記接触子により形成され
た凹部底面に開口させれば前記内側連通孔７は不
要になる。 In addition, the load side bushing 2 in this specific example
In the case where a tulip-shaped contact having a plurality of slits is formed at the base end of the rod-shaped conductor 5 (not shown) in 3, and the contact part is designed to ensure electrical conduction with the movable electrode. In this case, if the small diameter hole 6 in the embodiment described above is opened at the bottom of the recess formed by the contact, the inner communication hole 7 becomes unnecessary.
以上詳述したように、この考案は棒状導体の基
端部周側にはブツシングの内部とケースの内部と
の連通部分を閉塞し、前記棒状導体を支持する絶
縁部材を密着固定するとともに、その棒状導体に
はブツシングの内部とケースの内部とを連通する
ために小径の連通孔を透設することにより、ケー
ス内で発生した熱や高圧になつたガスはブツシン
グに対して急激な影響を及ぼすことなく、緩慢な
影響を与えるように小径の連通孔を通つてブツシ
ング内に導入されるので、ブツシングの破損を防
止でき、公衆災害の防止に寄与することができる
効果を奏するので、ガス入り開閉器として実用上
好ましい考案である。 As detailed above, this invention closes the communication part between the inside of the bushing and the inside of the case on the peripheral side of the base end of the rod-shaped conductor, tightly fixes the insulating member that supports the rod-shaped conductor, and By providing a small-diameter communication hole in the rod-shaped conductor to communicate between the inside of the bushing and the inside of the case, heat generated within the case and high-pressure gas can have a sudden effect on the bushing. Since the gas is introduced into the bushing through the small-diameter communication hole without causing a slow effect, it is possible to prevent damage to the bushing and contribute to the prevention of public disasters. This is a practical idea as a container.
第１図はこの考案のガス入り開閉器を具体化し
た一実施例を示す要部断面図、第２図及び第３図
は前記実施例を柱上用ガス入り開閉器に具体化し
た一例を示し、第２図はその正面図、第３図はそ
の一部破断底面図である。
ケース１，２１、絶縁部材３、棒状導体５、小
径孔６、内側連通孔７、外側連通孔８、ブツシン
グ１１，２２，２３。
Fig. 1 is a cross-sectional view of a main part showing an embodiment of the gas-filled switch of this invention, and Figs. 2 and 3 show an example of the above-mentioned embodiment embodied in a gas-filled switch for pole-mounted use. 2 is a front view thereof, and FIG. 3 is a partially cutaway bottom view thereof. Cases 1 and 21, insulating member 3, rod-shaped conductor 5, small diameter hole 6, inner communication hole 7, outer communication hole 8, bushings 11, 22, 23.
Claims (1)
に電極等を固定支持するための棒状導体によりそ
の導体と前記ケースに対して気密状に締付け固定
されるセンタークランプ方式のガスブツシングを
備えたガス入り開閉器において、前記棒状導体の
基端部周側にはブツシングの内部とケースの内部
との連通部分を閉塞するとともに前記棒状導体を
支持する絶縁部材を密着固定するとともに、その
棒状導体にはブツシングの内部とケースの内部と
を連通するために小径の連通孔を透設したことを
特徴とするガス入り開閉器。 A gas-filled opening/closing device equipped with a center clamp type gas bushing whose base end is supported and fixed to the case, and whose rod-shaped conductor is used to fixedly support electrodes, etc., and which is tightened and fixed to the conductor and the case in an airtight manner. In the device, an insulating member that closes the communication part between the inside of the bushing and the inside of the case and supports the rod-shaped conductor is tightly fixed to the circumferential side of the base end of the rod-shaped conductor, and the rod-shaped conductor is provided with a bushing. A gas-filled switch characterized by having a small-diameter communication hole provided in order to communicate between the inside and the inside of a case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12373880U JPS6131452Y2 (en) | 1980-08-30 | 1980-08-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12373880U JPS6131452Y2 (en) | 1980-08-30 | 1980-08-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5745721U JPS5745721U (en) | 1982-03-13 |
| JPS6131452Y2 true JPS6131452Y2 (en) | 1986-09-12 |
Family
ID=29484304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12373880U Expired JPS6131452Y2 (en) | 1980-08-30 | 1980-08-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6131452Y2 (en) |
-
1980
- 1980-08-30 JP JP12373880U patent/JPS6131452Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5745721U (en) | 1982-03-13 |
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